The process of finding out the resultant force is called __________ of forces.

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The process of finding out the resultant force is called __________ of forces.

A. Composition

B. Resolution

C. Decomposition

D. None of these

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From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate

A. 0.5 cm

B. 1.0 cm

C. 1.5 cm

D. 2.5 cm

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The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

A. Coplanar concurrent forces

B. Coplanar non-concurrent forces

C. Non-coplanar concurrent forces

D. None of these

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The velocity ratio of a single purchase crab winch can be increased by

A. Increasing the length of the handle

B. Increasing the radius of the load drum

C. Increasing the number of teeth of the pinion

D. All of the above

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Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.

A. Two times

B. Same

C. Half

D. None of these

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A machine having an efficiency greater than 50%, is known as

A. Reversible machine

B. Non-reversible machine

C. Neither reversible nor non-reversible machine

D. Ideal machine

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A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is

A. m₁/m₂

B. m₁. g. sin α

C. m₁.m₂/m₁ + m₂

D. m₁. m₂.g (1 + sin α)/(m₁ + m₂)

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Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

A. (2/3) Ml²

B. (1/3) Ml²

C. (3/4) Ml²

D. (1/12) Ml²

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The velocity of a particle moving with simple harmonic motion is __________ at the mean position.

A. Zero

B. Minimum

C. Maximum

D. None of these

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The amplitude is always __________ radius of the circle.

A. Equal to

B. Less than

C. Greater than

D. None of these

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If a number of forces are acting at a point, their resultant will be inclined at an angle θ with the horizontal, such that

A. tanθ = ΣH/ΣV

B. tanθ = ΣV/ΣH

C. tanθ = ΣV × ΣH

D. tanθ = √(ΣV + ΣH)

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The resultant of two equal forces P making an angle θ, is given by

A. 2P sinθ/2

B. 2P cosθ/2

C. 2P tanθ/2

D. 2P cotθ/2

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One kg force is equal to

A. 7.8 N

B. 8.9 N

C. 9.8 N

D. 12 N

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When the spring of a watch is wound, it will possess

A. Strain energy

B. Kinetic energy

C. Heat energy

D. Electrical energy

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The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

A. Static friction

B. Dynamic friction

C. Limiting friction

D. Coefficient of friction

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The friction experienced by a body, when at rest, is known as

A. Static friction

B. Dynamic friction

C. Limiting friction

D. Coefficient of friction

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Which of the following are vector quantities?

A. Angular displacement

B. Angular velocity

C. Angular acceleration

D. All of these

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On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be

A. Towards the wall at its upper end

B. Away from the wall at its upper end

C. Upwards at its upper end

D. Downwards at its upper end

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A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

A. Density of metal can't be determined

B. Metal is twice as dense as water

C. Metal will float in water

D. Metal is twice as dense as unknown fluid

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A smooth cylinder lying on a __________ is in neutral equilibrium.

A. Curved surface

B. Convex surface

C. Horizontal surface

D. None of these

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Center of percussion is

A. The point of C.G.

B. The point of metacenter

C. The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

D. Point of suspension

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The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

A. P + Q

B. P - Q

C. P / Q

D. Q / P

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The unit of angular acceleration is

A. N-m

B. m/s

C. m/s2

D. rad/s2

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The unit of power in S.I. units is

A. Horsepower

B. Joule

C. Watt

D. kg-m

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The range of projectile (R) on an upward inclined plane is

A. g. cos² β/2u². sin (α + β). cos α

B. 2u². sin (α + β). cos α/g. cos² β

C. g. cos² β/2u². sin (α - β). cos α

D. 2u². sin (α - β). cos α/g. cos² β

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Which of the following statement is incorrect?

A. A force acting in the opposite direction to the motion of the body is called force of friction

B. The ratio of the limiting friction to the normal reaction is called coefficient of friction

C. A machine whose efficiency is 100% is known as an ideal machine

D. The velocity ratio of a machine is the ratio of load lifted to the effort applied

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The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

A. n

B. n²

C. 2n

D. 2n - 1

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A pendulum which executes one beat per second is known as

A. Simple pendulum

B. Compound pendulum

C. Torsional pendulum

D. Second's pendulum

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If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,

A. P + m.a = 0

B. P - m.a = 0

C. P × m.a = 0

D. P/m.a = 0

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The loss of kinetic energy during inelastic impact, is given by (where m₁ = Mass of the first body, m₂ = Mass of the second body, and u₁ and u₂ = Velocities of the first and second bodies respectively.)

A. [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)²

B. [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)²

C. [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²)

D. [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²)

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Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is

A. 20 N

B. 40 N

C. 120 N

D. None of these

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Accepted Answer

A. Composition

The process of finding out the resultant force is called __________ of forces.

Correct Answer :

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Related Questions

From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate

The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

The velocity ratio of a single purchase crab winch can be increased by

Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.

A machine having an efficiency greater than 50%, is known as

A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is

Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

The velocity of a particle moving with simple harmonic motion is __________ at the mean position.

The amplitude is always __________ radius of the circle.

If a number of forces are acting at a point, their resultant will be inclined at an angle θ with the horizontal, such that

The resultant of two equal forces P making an angle θ, is given by

One kg force is equal to

When the spring of a watch is wound, it will possess

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

The friction experienced by a body, when at rest, is known as

Which of the following are vector quantities?

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be

A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

A smooth cylinder lying on a __________ is in neutral equilibrium.

Center of percussion is

The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

The unit of angular acceleration is

The unit of power in S.I. units is

The range of projectile (R) on an upward inclined plane is

Which of the following statement is incorrect?

The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

A pendulum which executes one beat per second is known as

If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,

The loss of kinetic energy during inelastic impact, is given by (where m₁ = Mass of the first body, m₂ = Mass of the second body, and u₁ and u₂ = Velocities of the first and second bodies respectively.)

Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is

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The process of finding out the resultant force is called __________ of forces.

Correct Answer :

Show all Engineering Mechanics MCQ

Related Questions

From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate

The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

The velocity ratio of a single purchase crab winch can be increased by

Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.

A machine having an efficiency greater than 50%, is known as

A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is

Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

The velocity of a particle moving with simple harmonic motion is __________ at the mean position.

The amplitude is always __________ radius of the circle.

If a number of forces are acting at a point, their resultant will be inclined at an angle θ with the horizontal, such that

The resultant of two equal forces P making an angle θ, is given by

One kg force is equal to

When the spring of a watch is wound, it will possess

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

The friction experienced by a body, when at rest, is known as

Which of the following are vector quantities?

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be

A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

A smooth cylinder lying on a __________ is in neutral equilibrium.

Center of percussion is

The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

The unit of angular acceleration is

The unit of power in S.I. units is

The range of projectile (R) on an upward inclined plane is

Which of the following statement is incorrect?

The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

A pendulum which executes one beat per second is known as

If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,

The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body, m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.)

Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is

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The loss of kinetic energy during inelastic impact, is given by (where m₁ = Mass of the first body, m₂ = Mass of the second body, and u₁ and u₂ = Velocities of the first and second bodies respectively.)